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Experience Kauai’s southern waters with a small-group zodiac dive adventure, exploring vibrant reefs, Hawaiian green sea turtles, and abundant marine life.

Kauai’s Ultimate Boat 2 Tank Adventure Dive offers certified divers a unique way to explore the island’s southern coast. Priced at $285.29 per person, this 4-hour tour departs from Kukuiula Small Boat Harbor in Poipu and is limited to no more than seven guests, ensuring a personalized experience. The tour features a zodiac boat ride aboard the Hokupaa, a US Coast Guard-approved vessel, providing an exciting mix of adventure and marine exploration.
This tour is especially suited for divers comfortable with moderate physical activity who seek an intimate, reef-focused outing. While the water conditions can sometimes be choppy—highlighted by one review noting harsh boat rocking—it remains a favorite among those eager to spot turtles, vibrant fish, and coral formations in a calm, picturesque setting.

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Tour begins at Kukuiula Small Boat Harbor at 4637 Amio Rd, Koloa. The meeting point is easy to access and near public transportation. The departure is from the Hokupaa zodiac vessel, which is 25 feet long and designed to comfortably carry up to 16 passengers, though for this tour, the limit is kept to ensure a relaxed environment.
The boat ride itself offers a thrilling way to reach diving sites, giving travelers scenic views of Kauai’s southern coast before reaching the underwater sites. The crew’s passion for marine life and island history adds an educational touch to the adventure right from the start.

What sets this tour apart is the combination of zodiac boating and diving, a feature exclusive to Kauai Down Under. The Hokupaa zodiac provides a fast, lively ride along the coast, bringing a sense of excitement before the underwater exploration. This small vessel allows access to areas of marine interest that larger boats might not reach, making the experience more intimate and exclusive.
The small group size ensures that each diver has ample space and attention, enhancing safety and comfort. The boat’s US Coast Guard approval guarantees adherence to safety standards, which is especially reassuring given the sometimes choppy sea conditions reported in reviews.

Diving in the calm waters off Kauai’s south shore provides excellent opportunities to view a variety of marine species. Among the highlights are Hawaiian green sea turtles (Honu), which are among the most exciting creatures to encounter underwater. The reefs teem with exotic reef fish, and divers often spot eels, crabs, and beautiful coral formations.
The diving sites feature pristine reefs and off-shore caverns, making each descent visually captivating. The marine ecology briefings offered by the crew help participants identify and learn about the species they observe, enriching the experience beyond just sightseeing.

The all-inclusive package covers scuba equipment use, ensuring all gear is ready for use. Plus, bottled water and snacks are provided to keep energy up during the tour. The detailed marine ecology and site briefing prepares divers with vital knowledge about the underwater environment, which enhances appreciation and understanding of the marine life encountered.
This comprehensive approach makes the tour convenient and informative, especially for those who want a deeper connection with Kauai’s underwater ecosystem.

While most reviews praise the calm waters and enjoyable dives, some mention that ocean conditions can be rough, with harsh boat rocking. This was noted as a cause of mild seasickness for a few participants. The tour’s physical requirements are moderate, but travelers should be prepared for balancing on a small boat and moderate swimming.
Participants should have moderate physical fitness and be comfortable with being on a boat for an extended period. The crew provides safety and comfort tips, but those prone to seasickness may wish to take precautions.

The Captain and crew are passionate about marine life and island history, sharing their knowledge during the briefings. Their enthusiasm and expertise enhance the experience, making it both educational and engaging. The crew’s attentiveness ensures safety and makes the trip more enjoyable, especially for certified divers who want to learn more about the local marine environment.

Booking this tour requires about 34 days in advance on average, reflecting its popularity. The tour operates with free cancellation up to 24 hours in advance, providing peace of mind if plans change. Weather plays a crucial role, and poor conditions can lead to cancellations, with options for rescheduling or full refunds.
This flexibility is valuable, especially given Kauai’s variable weather. Travelers should be aware that the tour is dependent on good weather for the best experience.
At $285.29 per person, this tour offers value for certified divers seeking a personalized and adventurous experience. The combination of zodiac rides, two dives, and marine ecology education makes it a comprehensive option for those interested in marine exploration. The small group size enhances the overall experience, ensuring plenty of individual attention.
The Kauai’s Ultimate Boat 2 Tank Adventure Dive offers a well-rounded, personalized experience for certified divers who want to explore Kauai’s southern coast. The small zodiac vessel, coupled with marine life encounters—including sea turtles, reef fish, and coral—creates a memorable outing.
While ocean conditions can be rough and physical demands moderate, the knowledgeable crew, scenic boat ride, and marine ecology focus make this tour stand out. It’s ideal for divers who appreciate personalized service and want to combine a zodiac adventure with two immersive dives in a beautiful setting.
“Easily travel to locations, but good reefs with plenty of turtles. Easy dives, calm waters. Worth the trip!”
Is this tour suitable for beginners?
This tour is designed for certified divers, so it’s best suited for those with current scuba certification and moderate physical fitness.
What marine animals might I see?
You are likely to encounter Hawaiian green sea turtles, reef fish, eels, crabs, and coral formations.
How long does the tour last?
The entire experience takes approximately 4 hours, including boat rides, briefing, and two dives.
What should I bring?
Participants should bring their certification card, moderate physical fitness, and be prepared for potential choppy waters.
Is there a minimum age requirement?
The provided information does not specify age restrictions, but the tour is geared towards certified divers comfortable with moderate physical activity.
What happens if the weather is poor?
The tour can be canceled due to weather, with options for rescheduling or full refund if this occurs.
How far in advance should I book?
It’s recommended to book about 34 days in advance for best availability, especially during peak seasons.
Can non-divers join the zodiac ride?
This tour is specifically for certified divers, so non-divers would need a different experience.
What safety measures are in place?
The Hokupaa zodiac is US Coast Guard approved, and the crew provides safety briefings and guidance throughout the tour.
Is food provided during the tour?
Yes, snacks and bottled water are included in the package, keeping you refreshed during the adventure.